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Finding the Fourth Proportional to 162,929.40, 244,321.20 and 74,137.20

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Solution

The fourth proportional to 162,929.40, 244,321.20 and 74,137.20 is: 111,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,929.40 : 244,321.20 = 74,137.20 : x
  2. Step 2: Convert to fraction form
    162,929.40/244,321.20 = 74,137.20/x
  3. Step 3: Cross multiply
    162,929.40x = 244,321.20 × 74,137.20
  4. Step 4: Simplify right side
    162,929.40x = 18,113,289,668.64
  5. Step 5: Solve for x
    x = 18,113,289,668.64/162,929.40
  6. Step 6: Final answer
    x = 111,172.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.